弹簧微启封闭式高压安全阀
A41Y-160、320型适用于工作温度≤200℃空气、氮氢混合气、水等介质的设备和管路上。A41Y-160P/320P、A41Y-160R/320R型适用于工作温度≤200℃有腐蚀性的气体或液体介质的设备和管路上，作为超压保护装置。
弹簧微启封闭式高压安全阀连接法兰按JB/T2769-92的标准。
弹簧微启封闭式高压安全阀主要零部件材料
| NO. | 零件名称 | A42Y-160 A42Y-320 材料 | A42Y-160P A42Y-320P 材料 | A42Y-160R A42Y-320R 材料 |
| 1 | 法兰 | 35/35CrMoA | 2Cr13 | 1Cr18Ni12Mo2Ti |
| 2 | 阀座 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 3 | 阀体 | 40 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 4 | 调节圈 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 5 | 阀瓣 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 6 | 反冲盘 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 7 | 导向套 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 8 | 阀盖 | ZG230-450 | ZG230-450 | ZG230-450 |
| 9 | 阀杆 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni9Ti |
| 10 | 弹簧 | 50CrVA | 50CrVA包覆氟塑料 | 50CrVA包覆氟塑料 |
| 11 | 调整螺杆 | 45 | 2Cr13 | 2Cr13 |
| 12 | 阀帽 | ZG200-400 | ZG200-400 | ZG200-400 |
| | 密封面材料 | 堆焊Co基硬质合金 | ||
■外形尺寸和连接尺寸
| 公称压力PN（MPa） | 公称通径DN（mm） | 尺寸（mm） | 重量（kg） | |||||||||||||||||
| do | d | D | D1 | M | D2 | B | Z-Φd | DN | D | D1 | M | D2 | b | Z-Φd | L | L1 | H | |||
| 16 | 15 | 7 | 16 | 95 | 60 | M-24×2 | 18 | 20 | 3-18 | - | 36 | - | M-33×2 | - | - | - | 45 | 80 | 105 | 4 |
| 20 | 10 | 19 | 95 | 60 | M-33×2 | 22 | 20 | 3-18 | - | 48 | - | M-33×2 | - | - | - | 45 | 80 | 105 | 4.5 | |
| 25 | 12 | 23 | 105 | 68 | M-33×2 | 28 | 20 | 3-18 | - | 48 | - | M-33×2 | - | - | - | 45 | 80 | 105 | 5.2 | |
| 16 | 15 | 8 | 15 | 95 | 60 | M-24×2 | 18 | 20 | 3-18 | 32 | 115 | - | M-42×2 | 37 | 22 | 4-18 | 95 | 100 | 259 | 7.8 |
| 20 | 10 | 23 | 98 | 60 | M-24×2 | 20 | 20 | 3-18 | 40 | 165 | - | M-52×2 | 47 | 28 | 6-26 | 110 | 115 | 266 | 11.5 | |
| 25 | 12 | 23 | 105 | 68 | M-33×2 | 28 | 20 | 3-18 | 40 | 165 | - | M-52×2 | 47 | 28 | 6-26 | 110 | 115 | 266 | 12.5 | |
| 32 | 15 | 25 | 115 | 80 | M-42×2 | 37 | 22 | 4-18 | 50 | 165 | 115 | M-64×3 | 59 | 32 | 6-26 | 130 | 1450 | 335 | 21.3 | |
| 40 | 20 | 39 | 165 | 115 | M-52×2 | 47 | 28 | 6-26 | 65 | 200 | 145 | M-80×3 | 74 | 40 | 6-29 | 150 | 170 | 390 | 35.3 | |
| 50 | 25 | 48 | 165 | 115 | M-64×3 | 59 | 32 | 6-26 | 80 | 225 | 170 | M-100×3 | 94 | 50 | 6-33 | 190 | 210 | 393 | 48 | |
| 32 | 15 | 8 | 17 | 105 | 68 | M-33×2 | 29 | 20 | 3-18 | 32 | 115 | 80 | M-42×2 | 37 | 22 | 4-18 | 95 | 100 | 259 | 8.1 |
| 20 | 10 | 23 | 105 | 68 | M-33×2 | 29 | 20 | 3-18 | 40 | 165 | 115 | M-52×2 | 47 | 28 | 6-26 | 110 | 115 | 266 | 12 | |
| 25 | 12 | 23 | 115 | 80 | M-42×2 | 36 | 22 | 4-18 | 40 | 165 | 115 | M-52×2 | 47 | 28 | 6-26 | 110 | 115 | 266 | 13 | |
| 32 | 14 | 30 | 135 | 95 | M-48×2 | 41 | 25 | 4-22 | 50 | 165 | 115 | M-64×3 | 59 | 32 | 6-26 | 130 | 140 | 335 | 22.2 | |
| 40 | 16 | 38 | 165 | 115 | M-64×3 | 57 | 32 | 6-26 | 65 | 200 | 145 | M-80×3 | 70 | 40 | 6-29 | 150 | 170 | 390 | 37 | |
| 50 | 20 | 48 | 200 | 145 | M-80×3 | 70 | 40 | 6-29 | 80 | 225 | 170 | M-100×3 | 94 | 50 | 6-33 | 190 | 210 | 393 | 55 | |
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